.hero {
  background-size: cover;
  /* overflow: hidden; */
}
.navbar {
  /* background-image: url("../images/topBgc.png"); */
  background-color: #000;
  padding: 0 50px;
  height: 80px;
}
.navbar .logoImg {
  width: 100px;
}
.nav-item {
  width: 100px;
  color: #fff !important;
  cursor: pointer;
  text-align: center;
  font-size: 16px;
  padding: 10px;
  margin: 0 30px;
  z-index: 100;
}
.nav-item.active {
  background-image: url("../images/navBor.png");
  background-size: 100%;
  background-repeat: no-repeat;
  background-position: center;
}
.navbar-toggler {
  color: #000;
}
.widthCss {
  margin: 0 15vw;
}
@media (max-width: 1000px) {
  .widthCss {
    margin: 0 30px;
  }
  .nav-item {
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: space-between;
  }
  .nav-item::after {
    content: ">";
    display: flex;
    align-items: center;
  }
  .navbar {
    padding: 0;
  }
}
/* 下拉菜单初始隐藏 */
.dropdown-menu {
  display: none;
  position: absolute;
  background-color: #fff;
  box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
  z-index: 1;
  list-style-type: none;
  padding: 0;
}
/* 鼠标悬浮在 dropdown 上时显示下拉菜单 */
.dropdown:hover .dropdown-menu {
  display: block;
}
/* 下拉菜单选项样式 */
.dropdown-menu li {
  padding: 12px 16px;
}
/* 下拉菜单链接样式 */
.dropdown-menu li a {
  color: black;
  text-decoration: none;
  display: block;
}
/* 鼠标悬浮在下拉菜单选项上的样式 */
.dropdown-menu li a:hover {
  background-color: #f1f1f1;
}
/* 底部css */
footer {
  background-color: #000;
  color: #fff;
  padding: 20px 0;
  margin-top: 30px;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-left {
  text-align: center;
  margin-bottom: 20px;
}
.footer-left img {
  max-width: 200px;
  margin-bottom: 10px;
}
.footer-links {
  list-style: none;
  padding: 0;
}
.footer-links li {
  margin: 10px 0;
}
.footer-links a {
  color: #ccc;
  text-decoration: none;
}
.footer-links a:hover {
  color: #fff;
}
.copyright {
  text-align: center;
  margin-top: 20px;
  color: #666;
}
@media (min-width: 768px) {
  .footer-left {
    text-align: left;
    margin-bottom: 0;
  }
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 0, 0, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
